[PDF] 6502 stack operations

  • How does 6502 stack work?

    In a 6502 microprocessor, stack is hardcoded between the memory addresses $0100 and $01FF. And it's in the zeroeth page of the memory. Memory page is a virtual concept that divides the RAM into bite-sized segments. In 6502 processor, a memory page is 512 bytes.15 déc. 2020

  • Where is the stack in 6502?

    The 6502 has hardware support for a stack implemented using a 256-byte array whose location is hardcoded at page $01 ($0100-$01FF), using the S register for a stack pointer.4 août 2020

  • What are the main operations of memory stack?

    Basic Operations of Stack/Stack Pointer
    There are two operations of the stack they are: PUSH operation and POP operation.
  • In summary, the stack is a critical data structure used by processors in operating systems to manage program execution, interrupts, and exceptions. The stack is a LIFO data structure implemented in the memory of the processor and is used to store data and return addresses during program execution.
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6502 Stack

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Executes existing 6502/65C02 code tn up to 25% fewer cycles. • 16-bit stack pointer with two modes of operation. • full 16-bit oomter.



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The FPGA-based 6502 microprocessor had to emulate the functionality of architecture and its operation and also FPGA design techniques.

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